No connection could be closer than this reciprocal involution, as nature and life reveal it; but the connection is natural, not dialectical. The union will be denaturalised and, so far as philosophy goes, actually destroyed, if we seek to carry it on into logical equivalence. If we isolate the terms mind and body and study the inward implications of each apart, we shall never discover the other. That matter cannot, by transposition of its particles, _become_ what we call consciousness, is an admitted truth; that mind cannot _become_ its own occasions or determine its own march, though it be a truth not recognised by all philosophers, is in itself no less obvious. Matter, dialectically studied, makes consciousness seem a superfluous and unaccountable addendum; mind, studied in the same way, makes nature an embarrassing idea, a figment which ought to be subservient to conscious aims and perfectly transparent, but which remains opaque and overwhelming. In order to escape these sophistications, it suffices to revert to immediate observation and state the question in its proper terms: nature lives, and perception is a private echo and response to ambient motions. The soul is the voice of the body’s interests; in watching them a man defines the world that sustains him and that conditions all his satisfactions. In discerning his origin he christens Nature by the eloquent name of mother, under which title she enters the universe of discourse. Simultaneously he discerns his own existence and marks off the inner region of his dreams. And it behooves him not to obliterate these discoveries. By trying to give his mind false points of attachment in nature he would disfigure not only nature but also that reason which is so much the essence of his life. [Sidenote: They form one natural life.]